Multiplex communications – Special services – Conferencing
Patent
1995-01-13
1997-02-18
Chin, Wellington
Multiplex communications
Special services
Conferencing
348 15, 370403, H04L 1218
Patent
active
056047380
ABSTRACT:
A multipoint teleconference system dispensing with an MCU, in which terminals are connected into a loop configuration through an ISDN in such a way that each terminal is coupled with each of the adjacent terminals by a single B channel. Thus, a communication frame is revolved through a looped communication channel. Each terminal enters control information for controlling a multipoint teleconference, into a predetermined area within the communication frame, and it relays the resulting communication frame to the next terminal.
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Shibata Yoji
Takizawa Masaaki
Chin Wellington
Hitachi , Ltd.
Vu Huy D.
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